He also made telephone conversations with counterparts from NATO allies, as well as NATO chief Jens Stoltenberg, the ministry said.

Russia and Turkey have long been at odds over the crisis in Syria, with Moscow emerging as Syrian President Bashar al-Assad's key international backer and Ankara urging his ouster as the only solution to the conflict.

Turkey has labelled Russia's bombing campaign in Syria as "unacceptable" with President Recep Tayyip Erdogan warning that Moscow was making a "grave mistake."